Controlling mechanism for pumps.



R. E. BECHTOLD. CONTROLLING MECHANISM FOR PUMPS. APPHCATION FILED JULY 1. 19 12.

o Patent ed Dec. 21,1915.

3 SHEETSSHEET 1.

R. E. BECHTOLD; CONTROLLING, MECHANISM FOR PUMPS.

APPLICATION FILED JULY 111912.

Patented Dec. 21, 1915.

3 SHEETS-SHEET 2- R. E. BECHTOLD. CONTROLLING MECHANISM FOR PUMPS.

APPLICATION FILED JULY 1, 1912.

Patented Dec. 21, 191-5.

3 SHEETS$HEET 3- lit/10367011 BECI-I'IOLD, OI FORT WAYNE, INDIANA, ASSIGNOR TO S. F. BOWSER 801ml,

INC., OF FORT WAYNE, INDIANA, A CORPORATION OF INDIANA.

' ri'aacoa.

Specification of Letters Patent.

CONTROLLING MECHANISM FOR PUMPS.

Application filed July 1, 1912. Serial No. 706,850.

T 0 all whom it may concern: f

Be it known that I, REUBEN E. BECH- TOLD, a citizen of the United States, residing .at Fort Wayne, in the county of Allen and State of Indiana, have invented certain new and useful Improvements in Controlling Mechanism for Pumps, of

which the following is a specification.

' This invention relatesto controlling mechstopped at the completion of any revolutionof the hand lever, or at the starting point, without any attention of the operator, or may be operated continuously at the will of the operator.

Another object of the invention is to provide means to control the operation of the pump through the grip of the hand lever.

For the attainment of these ends and the accomplishment of other new and useful objects, as will appear, my invention consists of the features of'novelty in the construction, combination.and arrangement of the several parts generally shown in the accom panying drawings and described in the specification, but'more particularly pointed out in the appended claims.

In the drawings, Figure 1 is a side elevation with parts broken away for clearness, of a reciprocable pump to which my con trolling mechanism may be applied; Fig. 2 is a detail view of a locking device for the pump-controlling mechanism; Fig.- 3 is a detail view of registering indicators located upon relatively movable parts of the pump and the hand lever; Fig. 4 is a side elevation ofv the pump controlling mechanism showing the parts in dotted outline; Fig. 4A.

is a detail sectional view on the line 44 of Fig. 4:; Fig. 5 is a sectional plan view of the controlling mechanism as applied to a pump of the type illustrated in Fig. 1; Fig. '6 is a detail sectional view taken on the line 66, of Fig. 5; Fig. 7 is an enlarged detail view of the grip on the hand lever showing its operating connection more clearly.

In pumping diffe ent amounts of liquid from a pump in which the crank handle is turned continuously in one direction, it is not always convenient to watch an indicator or meter to determine'the actual amountof liquid discharged, and in the pumps of this class usually employed, it is customary to provide a stop which must be either set in position to engage the operating mechanism at a specific or predetermined point, or to permit the operation of the pump continuously. a

The present invention is designed to provide means for either stopping the operating lever at a predetermined point, or for allowing the lever to be rotated continuously. This mechanism is also controlled by the operation of the hand grip of the Operating lever so that the same hand which operates the pump may also be employed to control the operation of the pump in any way desired. To release the operating lever the grip must first be pressed longitudinally and rotated to move the operating.

Patented Dec. 21, ioia.

Referring now more particularly to the f drawings, and in the present exemplification of the invention, the controlling mechanism is shown as applied to a pump of the type having a plurality of separate single acting pistons reciprocable in a vertical direction, andprovided with means to cause the power stroke of the separate pumps to overlap whereby a continuous flow and presvarying members 16 which are suitably 50 springs 30 are provided and are disposed mounted upon the adjustable eccentric pivot pin 17. As these parts constitute no part of. the present invention, a detailed description of their construction and operation is not deemed necessary. a

As shown in Fig. 5, the crank shaft 15 is suitably mounted at one end in the pump.

casing 10, and at the other end by means of crank-shaft that the controlling mechanism key 22. At the side of the end portion and preferably disposed so as to bear against the other direction of rotation, the operatscribed.

the crank shaft.

will be considered to be applied. v

By reference now more particularly, to

Figs.. 5 to 7 inclusive, it will beseen that.

the end2O of the crankshaft, is provided with a ratchet member'21' which is preferably secured to the shaft, by means of a the inner vside of the casing member 18, is a flange 23, andfreely mounted. between the flange and the ratchet member 21 upon the end of the shaft 20, is a collar 24. Surrounding the ratchet member 21 for a 'portion of its length, is a sleeve 25 preferably hardened on the inner surface thereof, and surrounding the collar 24, and overlapping the ratchet member 21, is another sleeve 26. This sleeve 26 may be formed integrally within the casing 18, but is preferably 'of a removable construction and is secured to the casing in any desired or suitable manner. The. other sleeve 25 is secured to the hand lever or operating member 27 for the mechanism, which will be hereinafter described. The'ratchet member 21 is provided with a plurality of longitudinally extending recesses or grooves 28 in which there are disposed the clutching rollers 29. The bottom of the grooves 28 are inclined so that in the direction of rotation, the rollers 29 if pressed outwardly, will engage the sleeve 25, thereby engaging the operatingmember 27 with movement of the clutching rollers 29, coil in an extension of the groove 28 so that they tend to press the rollers outwardly. From this it is evident that in one direction of rotation, the rollers 29 will engage the operating member 27 with the crank shaft, and in ing member will be free to rotate.

Disposed beneath the sleeve 26 and located in the ratchetmember 21 are other clutch- ,ing rollers31, preferably similar in construction and'operation to those already de- From this it will be seen that the rotation of the operating member 27 in one direction will effect the engagementthereof To effect the. outward erating member is preferably formed withan extending portion'33, substantially the same outside diameter as the extending portion 32 and having a portion projecting beneath the extending portion 32 of the casing member. Connected to the operating member 27 and preferably formed integrally therewith, is an operating lever 34 at the end of which there is mounted upon a pivot pin 35, a hand grip 36. The extending portions 32 and 33, preferably form an annular chamber surrounding the end of the crank shaft, and pivotally mounted in connection with the operating member 27 are the engagement dogs 37. The inneredge of the extending portion 32 of the casing member 18 is preferably formed with shoulders 38 suitably spaced apart and disposed in opposite directions, and the dogs 37 are provided with springs 39 which tend to press them normally into engagement with the shoulders. These shoulders and dogs are, so disposed that both dogs are in engagement with both of the shoulders at the same time so that a relative movement of the operating member'27 and a pump casing isprevented. One of the dogs 37, however, is located atjacent the inner end of the lever 34 and is the other end of which is slightly bent and positioned at one side of a collar 42 which is rotatably mounted upon the pivot pin 35. This collar 42 is disposed between the grip 36 and the lever 34, and a coil spring 43 is preferably provided topress the collar and the grip normally apart. The collar and,the grip are provided, however, with interengaging teeth 44 by means of which the collar may be rotated by the grip when the grip ispressed to overcome the spring and against the collar 42 so that the said teeth are interengaging. The normal position of the rod 41 is such as to allow the dog 37 to be in engagement with its shoulder 38, as shown in Fig. 4, and at this time, the other end of the rod 41 will be in engagement with the inside of the web 34* at one side ofthe lever as shown by this figure. When it is desired to free the dog from its engagement with the shoulder, it is necessary only to press the hand grip 36 meaeaa in thecollar 32 and to rotate the hand grip slightly to raise the rod, and toraise the dog from its, engagement, the rod being held in raised position by the engagement of its bent portion witli the inside of the Web 34 at the other side of the operating lever 34.

From this description it is evident that a.

vided at other points about the members 18 so that the operating lever may be stopped at anyposition and prevented from reverse rotation from any position.

In order to indicate when a predetermined .amount less than that pumped by an entire rotation of the pump lever, indicators 45 may be provided on the adjacent extending portions 32-and 33 (see Fig. 3) which will indicate any desired amount. From'this it will be evident that a fractional part of the amount pumped upon a complete stroke, may be discharged and the lever 34 returned to its starting or a previously determined point in the reverse direction. The operating member 27 may be secured to the pump in any desired or suitable manner, such for example as by means of a plate 46 disposed on the outside of the end of the shaft to which it is secured by means of a screw 47,

the operating member 27 being free to rotate.

without engaging the plate 46.,

In order to lock the operating member in any desired position, the casing member 18 is preferably provided with a projection 48' (see Figs. 2 and 4) which is formed with an abutment 49 in which projection 'a looking member 50 is pivotally mounted. This locking member 50 is provided with a recess 51 which is adapted to seat a coil spring 52 which presses normally against the abutment 49 tending thereby to press the looking member outwardly. The locking member 50 is also provided with an extension 53 adjacent the pivotal mounting in the projection 48 which is adapted to bear against the abutment 49 when the locking member 50 is rotated a certain amount about its pivotal mounting. The object of this extension is to prevent the locking member from swinging too far outwardly from the member to which it is pivotally connected. The pump casing member 18 is provided with an opening 54, and the operating member 27 is provided with an opening 55, preferably in the extending portion 33 and so disposed with respect to the opening 54, that the two openings register when the operating member 27 is rotated to a predetermined position.

It is to be understood that the portions 32 and 33 overlap so that a single projection may be inserted in the openings which register to lock the two members in any desired position. It is also to be understood that there may be any desired number of locking positions, it being necessary only to provide a seriesv or a number of perforations or openings in the projecting portion of the operating member 27. Projecting from the casing member 18 adjacent the opening 54 therein and preferably on the side opposite the pivotally mounted locking member 50, is a catch 56, and suitably arranged in the member 50 is a lock 57 which has a latch 58 operated by a key andadapted to engage the catch 56. The lock 57 may be of any de sired orsuitable construction, it being necessary onlyto provide means to move the latch 58 to .disengage it from the catch 56v when it is desired to release the locking member 50. The locking member 50 is provided with a projection 59 which may be and preferably is formed integrally with the locking member and which is adapted to be inserted through the openings 54 and 55. It is evident that when the projection 59 is inserted through the openings the relative movement of the operating member 27 with respect to the casing member 18 is prevented. The locking member 50 is also provided with a shieldportion 60 at the outer end thereof adapted to inclose the latch 58 and thecatch 56 when the locking member is in locked position, thereby preventing any one from tampering with the engagement of the latch with the catch. As soon as the latch released from the catch 56, the spring 52 is operative to press the locking member outwardly'so that the projection 59 is free of engagement with the operating member 27 so that it is free to be rotated.

In order to register the total amount of fluid pumped, a registering device 61 (see Fig. 5) may be provided, which issecured tothe pump casing 10 and which has positive engagement with the crank shaft 15 by means of the gears 62 and 63. As this registering device. constitutes no part of thepresentinvention, it is deemed sufficient to say that. it may beof any desired type which is suitable to register the amount pumped by the continuous operation of the pump in mined point during any revolution of the It is also evident-that operating member. the control of the operating member may be effected by the hand which'effects the pumping operation, andwithout any other means so that the other hand may be free to do anything else which is necessary, such for example, as to hold or to steady the vessel ing a handled operating lever, and means in connection with the handle of the lever v operated by the rotation of the handle to lock and unlock the lever at a predetermined point. p

3. The combination with a pump having an operating lever, of mo'vablemeans directly connected to the lever to lock and unlock it at a predetermined point, and a rotary handle to operate the means by its rotation.

4. The combination with a pump having a rotatable operating lever, of a rotatable handle connected to the lever, and means controlled by the rotation of the handle to lock and unlock the lever at apredetermined point.

5. The combination .with a pump having an operating lever, of means to lock the lever at a predetermined point, and a rotatable handle in connection with the lever .tore

lease the lever from the lockingmeans by its rotation. i

'6. The'combination with a pump having a rotatable operating lever, of means to lock the lever at a predetermined point against rotation in either direction, and a'rotatable handle in connection with. the lever to release the locking means by its rotation for permitting the rotation of the lever in one.

direction. I

7. The combination with a pump having a'rotatable operating lever, of means to lock the lever at a predetermined point in either direction of rotation, and means in connection with the lever to release the locking means and permit the rotation of the lever.

8. The combination with a pump having a rotatable operating lever, ofmeans to lock the lever at a predetermined point in either direction of rotation, and means in connection with the lever to release it, the said means being effective to permit the rotation of the lever in one direction only to the predetermined point, and in the other direction past the said point.

9. The combination with a pump having lever with the pump at a predetermined point, and means operated atwill from the outer end of the hand lever to release the lever and to prevent the engagement by the stopping means.

11. The combination with a pump, of an operating hand lever therefor rotatable in one direction to effect the pumping action,

. -stopping means to lockthe lever at a predetermined point, an independently rotatable grip mounted on the lever, and means in connection therewith to release the lever.

. 12. The combination with a pump, of an operating hand lever therefor rotatable in one direction to effect the pumping action, stopping means to lock the lever at a predetermined point, an independently rotatable grip mounted'on the lever, and arod operated by the grip to release and to prevent the locking of the lever.

13.'-The combination with. a pump, of an operating 'hand lever therefor rotatable in one direction to effect the pumping action, stopping means to lock the lever at a predetermined point, an independently rotatable grip mounted on the lever, and a, rod posi tioned by the lever and operated by the grip to release and to prevent the engagement of the lever.

14. The combination with a pump, of an operating hand lever therefor rotatable in one direction to effect the pumping action,

stopping meansto lock the lever at a predetermined point, an independently rotatable grip mounted on the lever, and a rod parallel with and partially inclosed by the lever, and operated by the grip to release and to prevent the locking of the lever.

15. The combination with a pump, of an operating lever therefor rotatable to effect the pumping action, means to lock the lever at a predetermined point, a rotatable collar mounted upon the lever, a rod having one end pivoted in the collar and operative to release the said locking means, and a hand grip mounted on the lever movable to engage the collar to operate the said rod.

16. The combination with a pump, of an operating lever therefor rotatable to effect the pumping action, means to lock the lever at a predetermined point, a rotatable collar mounted upon the lever, a rod having one end pivoted in the collar and operative to release the said locking means, a hand grip mounted on the lever movable to engage the collar to operatethe said rod, and means acting normally to oppose the engagement operating lever therefor rotatable to effect. the pumping action, means to lock the leverat a predetermined point, a rotatable collar mounted upon the lever, a rod having one end pivoted in' the collar and operative to release the said locking means, a hand grip mounted on'the lever movable to engage the collar to operate the said rod, the grip and collar being formed with interengaging means, and a spring interposed therebetween to oppose the engagement of the grip with the collar.

18. The combination of a pump, of a rotatable operating lever therefor, a dog pivotally mounted upon the lever, a casing plate having a shoulder to engage the dog, means to press the dog into such engagement, a rotatable hand grip at the freeend of the lever, and means in connection with the grip to disengage the dog from the shoulder and to hold it in disengaged position.

19. The combination with a pump having a crank shaft, ofa rotatable operating lever therefor, a dog having a projecting pocket portion pivotally mounted upon the lever, a casing plate having .a shoulder to engage the dog, a coil spring to press the dog normally into engagement with said shoulder, a rotatable collar mounted on the crank shaft, a hand grip at the end of the lever, the grip and collar being provided with interengaging means, and a rod pivoted at one end in the collar and engaging in the said pocket of the dog at the other, the rotation of the grip, when engaging the collar, being effective to. move the rod to disengage th dog from the said shoulder.

20. The combination with a pump, of a rotatable operating lever connected to the pump crank shaft, a shouldered casing plate, dogs pivotally mounted on the operating lever adapted to engage the casing plate and to hold the lever in a predetermined position, and means in connection with the .lever to release one of the dogs from such engagement.

21. The combination with a pump having anoperating shaft, of a rotatable operating lever, means to engage the lever with the pump shaft to rotate the shaft in one direc tion only, and means to directly engage the shaft only for preventing its rotation in the reverse direction.

22. The combination with a pump having a rotatable operating shaft, of a lever there for, means to lock the lever and the shaft when said lever is rotating in one direction,

the lever being released when rotated in the other direction, and means to prevent the said shaft from rotating in the said other,

direction.

23. The combination with a pump having an operating shaft rotatable in the pump casing, of a lever therefor, means to lock the shaft with the lever when it is rotated, in one direction and to permit the free rota-' tion thereof in the other direction, a shouldered casing plate, dogs pivotally mounted on thelever to engage the casing plate and to hold the lever at a predetermined point,- means in connection with the lever to release one of the dogs to permit the rotation thereof in one direction, and .means to prevent the rotation of the operating shaft in' the said other direction.

24, The combination with a pump having a rotatable operating shaft, of a lever there- .for having a. hub, a fixed casing plate, a member keyed to the shaft and disposed within the hub of the lever, clutching rollers mounted in said member to engage the lever when rotated in one direction, and means to prevent the rotation of the shaft when.

the lever is rotated in the other direction. Q

25. The combination with a pump having an operating shaft rotatable in the pumpcasing, of a lever therefor having a hub,- 'a fixed casing plate, a member keyed to the shaft and disposed within the hub of the lever, clutching rollers mounted in said member to engage the lever when rotated in one direction, and other clutching rollers in in the cylinders, an operating lever for said shaft, means to lock the lever to the shaft in one direction of rotation, a stop device inconnection with the lever to prevent-the rotation of the lever past a certain point in the other direction and to lock the lever in a predetermined position, means in connection with the lever to release the lever to permit its rotation in an operative direction and to prevent the engagement thereof when the lever isr'o'tating in the operative direction, and clutching means to prevent the rotation of the crank shaft in the said other direction.

27, The combination with a pump having reciprocable plungers and a shaft to operate them in succession, of an operating lever,

' means to lock the lever to shaft in one direction of rotation and to permit the lever to rotate freely in the reverse direction,

means to limit the movement of the lever in the reverse direction, and means to prevent the reverse rotation of the pump shaft.

28. The combination with a pump, ofa casing plate therefor having an extending portion, an operating lever therefor having a flange substantially the same outside diameter' as the said extending casing, means to lock the lever to the shaft to rotate it in one direction and to permit the free rotation of the shaft to a predetermined point in the other direction, the pump being adapted to pump a predetermined amount upon each rotation in the operative direction, and indicators positioned upon the ad- Jaoent positions of the casing and the flange to point out When an amount less than that of a complete cycle of the operatinglever name to this specification, in the presence of 1 3 two subscribing Witnesses, on this 20th day of June A. D. 1912.

REUBEN, E. BECHTOLD.

Witnesses:

KENT W. VVONNELL, CHARLES H. SEEM. 

